JP2020001790A - Two-part mixing container and two-part mixing jetting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a two-liquid mixing container capable of reducing the need for shaking and mixing. A two-liquid mixing container 1 includes a first container 1a and a second container 1b including an accumulator pump 3, and the first container 1a is a second content liquid C2 housed in a second container 1b. 1 Used in an inverted position to mix the content liquid C1, the accumulator pump 3 has a fixing portion 7 having a suction port 5 and a cylinder 6, and a pressing portion pressed against the mouth portion 4a of the second container body 4. An operating portion 11 having an 8, piston 9, and an ejection port 10 and capable of advancing and retreating with respect to the fixing portion 7, and the fixing portion 7 and the operating portion 11 partition the flow path R from the suction port 5 to the ejection port 10. The pump chamber 12 is provided, and the operating portion 11 is integrally connected to the hollow rod-shaped portion 26 having the peripheral wall 25 having the through port 24, and is advanced with respect to the hollow rod-shaped portion 26. An opening / closing portion 27 that cuts off communication between the pump chamber 12 and the through port 24, and an elastic body 29 that urges the opening / closing portion 27 in the forward direction with respect to the hollow rod-shaped portion 26 are provided. [Selection diagram] Fig. 1

Description

  The present invention relates to a two-liquid mixing container and a two-liquid mixing ejection container.

  A second container for storing the first content liquid and a second container for storing the second content liquid, wherein the first container is used in an inverted posture to mix the first content liquid with the second content liquid; As a liquid mixing container, for example, one described in Patent Document 1 is known. In the two-liquid mixing container described in Patent Literature 1, the mouth of the first container in the inverted posture is attached to the mouth of the second container in the upright posture, and the first content liquid is subjected to the first content liquid by its own weight. It is configured to be introduced into two containers.

JP-A-9-254988

  In the conventional two-liquid mixing container as described above, it is necessary to shake the second container after introducing the first content liquid into the second container, and there is room for improvement in usability. In addition, for example, when mixing with a content liquid that is difficult to mix by shaking with carbon dioxide or the like, it is desirable that mixing can be performed without shaking as much as possible.

  An object of the present invention is to provide a two-liquid mixing container and a two-liquid mixing ejection container that can reduce the necessity of shaking and mixing and can be easily mixed.

The two-liquid mixing container according to one embodiment of the present invention,
A first container including a first container body having a cylindrical mouth portion connected to a storage space for storing the first content liquid, and a pressure accumulation pump;
A second container provided with a second container body having a cylindrical mouth portion connected to a storage space for storing the second content liquid,
The first container is used in an inverted posture to mix the first content liquid with the second content liquid contained in the second container,
The accumulator pump,
A fixing portion fixed to the mouth portion of the first container body and having a suction port for the first content liquid and a cylinder;
A cylinder having a pressing portion pressed against the mouth of the second container body, a piston slidable on an inner peripheral surface of the cylinder, and an ejection port for the first content liquid; An actuating part that can advance and retreat in the axial direction of
A pump chamber partitioned by the fixed portion and the operating portion into a flow path from the suction port to the jet port, and having a volume reduced by advancing the operating portion and increasing by a retreat of the operating portion. When,
A backflow prevention unit located upstream of the pump chamber,
The actuation unit is
A hollow rod-shaped portion having a peripheral wall having a through hole and forming a part of the flow path by the inner space of the through hole and the peripheral wall,
While being integrally connected to the piston, it is possible to cut off the communication between the pump chamber and the through port by advancing in the axial direction with respect to the hollow rod-shaped portion, while in the axial direction with respect to the hollow rod-shaped portion. An opening / closing unit that allows the pump chamber and the through hole to communicate with each other by retreating,
An elastic body that urges the opening / closing portion in the forward direction with respect to the hollow rod-shaped portion.

The two-liquid mixing container according to the present invention,
The actuation unit,
A rod-shaped member having the hollow rod-shaped portion,
A piston member having the piston and the opening and closing unit,
A pressing member attached to the rod-shaped member and having the pressing portion.

The two-liquid mixing container according to the present invention,
The piston member may have an inclined surface that is inclined radially inward toward the rear,
The elastic body may be constituted by a cantilevered elastic piece provided on the pressing member and pressing the inclined surface radially inward.

  In the two-liquid mixing container according to the present invention, an air chamber may be provided inside the pump chamber so as to expand and contract air in accordance with an increase and decrease in the internal pressure of the pump chamber.

The two-liquid mixing container according to the present invention,
The fixing portion may include a valve member having a valve body constituting the backflow prevention portion,
The valve member may include a topped cylindrical surrounding wall that partitions the air chamber inside.

  The two-liquid mixing container according to the present invention may include a lid with a communication port that covers an opening formed by a lower end of the surrounding wall and has a communication port that connects the air chamber and the pump chamber.

  The two-liquid mixing container according to the present invention may include a sliding member slidable on the inner peripheral surface of the surrounding wall while the air chamber is sealed.

  The two-liquid mixing container according to the present invention may be a sealed container in which the first container main body can be ejected from the ejection port of the pressure accumulation pump without replacing the first content liquid with air.

The two-liquid mixing ejection container according to one embodiment of the present invention,
A container main body having a cylindrical mouth portion connected to the storage space for storing the content liquid, and a pressure accumulation pump,
The content liquid is used in an inverted posture to be mixed with another content liquid stored in a storage space connected to a cylindrical mouth portion of a container body of another container,
The accumulator pump,
A fixed portion fixed to the mouth of the container body and having a suction port and a cylinder for the content liquid,
The container has a pressing portion pressed against the mouth portion of the other container body, a piston slidable on the inner peripheral surface of the cylinder, and a discharge port for the content liquid, and the shaft of the cylinder with respect to the fixed portion. An operating part that can move back and forth in the direction,
A pump chamber partitioned by the fixed portion and the operating portion into a flow path from the suction port to the jet port, and having a volume reduced by advancing the operating portion and increasing by a retreat of the operating portion. When,
A backflow prevention unit located upstream of the pump chamber,
The actuation unit is
A hollow rod-shaped portion having a peripheral wall having a through hole and forming a part of the flow path by the inner space of the through hole and the peripheral wall,
While being integrally connected to the piston, it is possible to cut off the communication between the pump chamber and the through port by advancing in the axial direction with respect to the hollow rod-shaped portion, while in the axial direction with respect to the hollow rod-shaped portion. An opening / closing unit that allows the pump chamber and the through hole to communicate with each other by retreating,
An elastic body that urges the opening / closing portion in the forward direction with respect to the hollow rod-shaped portion.

  ADVANTAGE OF THE INVENTION According to this invention, the necessity of shaking and mixing can be reduced, and the two-liquid mixing container and the jet container for two-liquid mixing which can be easily mixed can be provided.

It is a partial section side view showing the 1st container (spout container for two liquid mixing) of the two liquid mixing container concerning one embodiment of the present invention in an upside down state at the time of non-use. FIG. 2 is a partial cross-sectional side view showing the first container shown in FIG. 1 in a state where an opening / closing lid is removed and the container is placed on an opening of a container main body of a second container. FIG. 3 is a partial cross-sectional side view showing a state where the first container is pushed down from the state of FIG. 2 and the first content liquid is mixed with the second content liquid. FIG. 4 is a partially enlarged view of FIG. 3. FIG. 5 is a partially enlarged view of FIG. 4. It is a figure which shows the state at the time of pressing down the 1st container from the state of FIG. FIG. 5 is a view showing a first modification of the two-liquid mixing container shown in FIG. 1. FIG. 9 is a view showing a second modification of the two-liquid mixing container shown in FIG. 1.

  Hereinafter, a two-liquid mixing container and a two-liquid mixing ejection container according to an embodiment of the present invention will be described in detail with reference to the drawings. In the vertical direction, the first container is based on the inverted state, and the second container is based on the upright state. That is, the upper side of the first container means, for example, the upper side in FIG. 1, and the lower side means the opposite direction. In addition, the upper side of the second container means, for example, the upper side in FIG. 3, and the lower side means the opposite direction. Further, the term “axial direction” means the axial direction of a cylinder described later. Similarly, the term “radial direction” simply means the radial direction of the cylinder.

  As shown in FIGS. 1 to 3, the two-liquid mixing container 1 according to the present embodiment includes a first container (a two-liquid mixing ejection container according to the present embodiment) 1a and a second container 1b. As shown in FIG. 1, the first container 1a is configured so that it can be stored in an inverted posture when not in use. As shown in FIGS. 2 and 3, the first container 1a mixes the first content liquid C1 stored in the first container 1a with the second content liquid C2 stored in the second container 1b. In addition, it is configured to be used in an inverted posture.

  As shown in FIG. 1, the first container 1a includes a first container main body 2 and a pressure accumulating pump 3. The first container body 2 has a bottle shape having a cylindrical mouth 2a, a body 2b connected to the mouth 2a, and a bottom 2c connected to the body 2b. However, the shape of the first container main body 2 can be appropriately changed. For example, the first container main body 2 may have a tube shape. An accommodation space S1 for accommodating the first content liquid C1 is formed inside the first container body 2. The mouth 2a is continuous with the accommodation space S1. On the outer peripheral surface of the mouth 2a, a male screw for screwing the pressure accumulating pump 3 is provided. However, a convex portion or a concave portion for attaching the pressure accumulating pump 3 by tapping may be provided on the outer peripheral surface of the mouth portion 2a instead of such a male screw.

  The first container main body 2 is formed by blow molding, partitions the storage space S1 of the first content liquid C1 inside, and is deformable so as to reduce the volume with the ejection of the first content liquid C1. And a delamination container (delamid container) including: an outer layer body L2 accommodating the inner layer body L1 inside; and an outside air inlet (not shown) capable of introducing outside air between the inner layer body L1 and the outer layer body L2. It is configured. The outside air inlet can be provided, for example, at the bottom 2c or the mouth 2a of the first container body 2. When the first container body 2 is formed by extrusion blow molding (EBM) of a laminated parison, the bottom crack of the outer layer body L2 formed by sandwiching the split mold in the bottom 2c of the first container body 2. The slit having the shape of a circle can be used as an outside air inlet. A through hole for the outer layer body L2 may be provided in the mouth 2a, and the through hole may constitute an outside air inlet. The first container main body 2 is not limited to a laminated peeling container formed by extrusion blow molding, and is, for example, a laminated peeling container formed by biaxially stretch blow molding a preform having a bottomed cylindrical laminated structure. Is also good. Further, the first container main body 2 may be a double container other than the laminated peeling container. That is, the first container body 2 may be formed by separately forming the inner layer body L1 and the outer layer body L2 and then combining them. As described above, the first container main body 2 of the present embodiment is configured as a sealed container that can be ejected from the ejection port 10 of the pressure accumulation pump 3 without replacing the first content liquid C1 with air. The first container main body 2 may be a sealed container other than the double container as described above. For example, with the ejection of the first content liquid C1, the inner plate disposed inside the container main body may be a storage space S1. It may be a medium dish type container that can be moved so as to reduce the volume of the medium. In addition, the first container body 2 is not limited to the above-described sealed container, and, for example, introduces outside air into the storage space S1 with the removal of the first content liquid C1, and, on the other hand, the first content liquid from the storage space S1. It may have a check valve structure for preventing leakage of C1.

  As shown in FIG. 3, the second container 1b includes a second container main body 4 and a cap having a cylindrical shape with a top (not shown). The second container body 4 has a bottle shape having a cylindrical mouth 4a, a body 4b connected to the mouth 4a, and a bottom 4c connected to the body 4b. Inside the second container body 4, an accommodation space S2 for accommodating the second content liquid C2 is formed. The mouth 4a is continuous with the accommodation space S2. An external thread for attaching the cap by screwing is provided on the outer peripheral surface of the mouth 4a.

  Examples of the first content liquid C1 stored in the first container 1a include, but are not limited to, flavor, whiskey, syrup, and milk. In addition, examples of the second content liquid C2 stored in the second container 1b include, but are not limited to, carbonated beverages such as carbonated water, water, and coffee. Further, the first content liquid C1 and the second content liquid C2 may be other than beverages.

  As shown in FIG. 1, the pressure accumulating pump 3 is fixed to the mouth 2 a of the first container body 2 and has a fixed portion 7 having a suction port 5 for the first content liquid C1 and a cylinder 6, and a second container body. 4 has a pressing portion 8 pressed against the mouth 4a (see FIGS. 2 and 3), a piston 9 slidable on the inner peripheral surface of the cylinder 6, and a jet port 10 for the first content liquid C1 and fixed. An actuating section 11 which is capable of moving back and forth in the axial direction of the cylinder 6 with respect to the section 7. Note that “movable to and from the fixed portion 7” means that the device can be moved forward and backward (up and down) relative to the fixed portion 7. Further, the pressure accumulating pump 3 is divided into a flow path R from the suction port 5 to the ejection port 10 by the fixing part 7 and the operating part 11, and the volume is reduced by the advance of the operating part 11, The pump includes a pump chamber 12 whose volume increases due to retreat, a backflow prevention unit 13 located upstream of the pump chamber 12, and a coil spring 14 for urging the operating unit 11 in the retreating direction. The forward movement of the operating unit 11 means the forward movement (upward) of the operating unit 11 relative to the fixed unit 7, and the retreat of the operating unit 11 refers to the retreat of the operating unit 11 relative to the fixed unit 7 ( Descent). Further, the pressure accumulating pump 3 includes an opening / closing lid 15 that closes the ejection port 10 so as to be openable.

  The fixing portion 7 includes a mounting member 16 attached to the mouth 2a of the first container body 2, a tubular member 17 attached to the mounting member 16 and having the suction port 5 and the cylinder 6, and a backflow prevention portion 13. And a valve member 18 having a valve element 18a. The operating portion 11 includes a rod-shaped member 19, a piston member 20 having the piston 9, a pressing member 21 attached to the rod-shaped member 19 and having the pressing portion 8, and a jet port attached to the pressing member 21. And a nozzle tip member 22 having a ten. Further, the opening / closing lid 15 is constituted by an opening / closing lid member 23 detachable from the mounting member 16. Note that the member configurations of the fixing unit 7, the operating unit 11, and the opening / closing lid 15 can be appropriately changed. Each member may be made of, for example, a synthetic resin, but is not limited thereto. For example, the coil spring 14 may be made of metal.

  The rod-shaped member 19 has a peripheral wall 25 having a through-hole 24 and a hollow rod-like portion 26 that forms a part of the flow path R by the inner space of the through-hole 24 and the peripheral wall 25. The through-hole 24 is formed by holes that pass through the peripheral wall 25 and are provided at a plurality of positions in the circumferential direction at the upper part of the peripheral wall 25. However, the through-hole 24 may be constituted by a hole provided at only one position in the circumferential direction and penetrating the peripheral wall 25. The piston member 20 has an opening / closing portion 27 integrally connected to the piston 9. The opening / closing portion 27 cuts off the communication between the pump chamber 12 and the through-hole 24 by advancing in the axial direction of the cylinder 6 with respect to the hollow rod-shaped portion 26, and in the axial direction of the cylinder 6 with respect to the hollow rod-shaped portion 26. The pump chamber 12 and the through-hole 24 are configured to communicate with each other by retreating. To advance with respect to the hollow rod portion 26 means to advance (up) relative to the hollow rod portion 26, and to retract with respect to the hollow rod portion 26 means to move relative to the hollow rod portion 26. Means relatively retreating (falling down). Further, the piston member 20 has an inclined surface 28 that is inclined radially inward toward the rear. The pressing member 21 has an elastic body 29 that urges the opening / closing portion 27 against the hollow rod-shaped portion 26 in the forward direction. The elastic body 29 is formed of a cantilevered elastic piece that presses the inclined surface 28 inward in the radial direction. The inclined surface 28 is provided over the entire circumference, and the cantilevered elastic pieces are provided at a plurality of positions in the circumferential direction. However, the inclined surface 28 and the corresponding cantilevered elastic pieces may be provided at a plurality of positions or only one position in the circumferential direction.

  Further, the valve member 18 includes a surrounding wall 30 having a cylindrical shape with a top. The surrounding wall 30 defines an air chamber 31 inside. The air chamber 31 accommodates air inside the pump chamber 12 so as to be able to expand and contract according to the rise and fall of the internal pressure of the pump chamber 12.

  The attachment member 16 has a cylindrical attachment cylinder 16a attached to the mouth 2a of the first container body 2. On the inner peripheral surface of the mounting cylinder 16a, a female screw that is screwed with a male screw provided on the outer peripheral surface of the mouth 2a is provided. An outer peripheral edge of a horizontal annular wall 16b is connected to a lower end of the mounting cylinder 16a. A cylindrical guide wall 16c that can surround the mouth 4a of the second container body 4 (see FIG. 2) is vertically provided on the horizontal annular wall 16b. On the horizontal annular wall 16b, a cylindrical sealing cylinder 16d that is in close contact with the inner peripheral surface of the mouth 2a of the first container main body 2 is erected. A cylindrical outer cylinder wall 16e is provided upright on the horizontal annular wall 16b at a position radially inside the sealing cylinder 16d and radially outside the inner peripheral edge of the horizontal annular wall 16b. A cylindrical inner cylinder wall 16f extends upward from the inner peripheral edge of the horizontal annular wall 16b. A horizontal annular inward flange 16g extends radially inward from the upper end of the inner cylindrical wall 16f. A cylindrical guide cylinder 16h extending in the axial direction is connected to the inner peripheral edge of the inward flange 16g.

  The cylindrical member 17 has an annular flange 17a extending radially outward from the lower end of the cylindrical cylinder 6, and a cylindrical locking cylinder 17b extending upward from the outer peripheral edge of the flange 17a. are doing. The outer peripheral surface of the locking cylinder 17b is in contact with the inner peripheral surface of the outer cylinder wall 16e in a state where the inner peripheral surface of the cylinder 6 is in contact with the outer peripheral surface of the inner cylinder wall 16f and the flange 17a is in contact with the horizontal annular wall 16b. Mating. The lower end of a cylindrical upper cylinder 17c having a diameter smaller than that of the cylinder 6 is connected to the upper end of the cylinder 6 via a step 17f. The outer periphery of a horizontal annular top wall 17d is connected to the upper end of the upper cylinder 17c. On the lower surface of the inner peripheral edge of the top wall 17d, an annular convex portion 17e having an inverted conical outer peripheral surface and a cylindrical inner peripheral surface is provided.

  The valve member 18 has a fitting wall 18b that has an annular shape and whose outer peripheral surface is fitted to the inner peripheral surface of the upper cylinder 17c with its upper surface in contact with the lower surface of the top wall 17d. A plurality of connecting pieces connected to the outer peripheral edge of the disc-shaped valve element 18a are connected to the inner peripheral surface of the fitting wall 18b. However, the outer peripheral edge of the valve body 18a and the inner peripheral surface of the fitting wall 18b may be connected by a single connecting piece. The lower end of the annular projection 17e is in close contact with the upper surface of the valve element 18a. At the lower end of the fitting wall 18b, there is provided a connecting wall 18c that hangs from a plurality of locations in the circumferential direction and connects to the upper end of the outer peripheral surface of the surrounding wall 30.

  The outer diameter of the peripheral wall 25 of the rod-shaped member 19 gradually decreases downward, and the inner diameter gradually increases downward. The upper end of the peripheral wall 25 is closed by the closing wall 19a. From the upper end of the outer peripheral surface of the peripheral wall 25, an annular convex portion 19b projects radially outward.

  The pressing member 21 has a cylindrical fitting cylinder 21a fitted to a lower portion of the outer peripheral surface of the peripheral wall 25. At the lower end of the inner peripheral surface of the fitting cylinder 21a, a nozzle tip member 22 provided for adjusting the ejection amount of the first content liquid C1 is attached. The nozzle tip member 22 has a cylindrical outer peripheral wall and a closed-end cylindrical shape in which one end of the outer peripheral wall is closed and the ejection port 10 is provided at the center. The outer peripheral wall of the nozzle tip member 22 is fitted to the lower end of the inner peripheral surface of the fitting cylinder 21a. An inner peripheral edge of the horizontal annular pressing portion 8 is connected to a lower portion of the fitting cylinder 21a. The outer peripheral edge of the pressing portion 8 faces the inner peripheral surface of the guide wall 16c. On the outer peripheral surface of the fitting cylinder 21a, vertical ribs 21b are provided at a plurality of locations in the circumferential direction, extending vertically from the upper end of the fitting cylinder 21a to the upper surface of the pressing portion 8. Each of the vertical ribs 21b has a radially outer end surface projecting in a stepped manner at the lower end. The lower end of the coil spring 14 is in contact with or close to the radially outer end surface at the lower end of each vertical rib 21b. The upper end of the coil spring 14 is located between the inner cylinder wall 16f and the guide cylinder 16h. The lower end of a cylindrical guided cylinder 21c whose diameter is larger than that of the fitting cylinder 21a is connected to the upper end of the fitting cylinder 21a via a step. The outer peripheral surface of the guided cylinder 21c and the portion other than the lower end of the radially outer end surface of each longitudinal rib 21b are connected so as to be flush with each other in the vertical direction. A fixed end (lower end) of a cantilevered elastic piece constituting the elastic body 29 is connected to an upper end of the guided cylinder 21c.

  The piston member 20 has a horizontal annular connecting annular wall 20a. The intermediate portion in the vertical direction of the substantially cylindrical piston 9 is connected to the outer peripheral edge of the connecting annular wall 20a. On the inner peripheral edge of the connecting annular wall 20a, a cylindrical opening / closing portion 27 whose outer peripheral surface is reduced in diameter upward is provided upright. In addition, a cylindrical pressed wall 20b whose outer peripheral surface is reduced in diameter is vertically provided on the inner peripheral edge of the connecting annular wall 20a. The outer peripheral surface of the pressed wall 20b forms an inclined surface 28. At the lower end of the pressed wall 20b, a sliding cylinder 20c whose diameter slightly increases downward is vertically provided. The lower part of the outer peripheral surface of the sliding cylinder 20c is slidably in contact with the inner peripheral surface of the guided cylinder 21c.

  The opening / closing lid member 23 has a disc-shaped lid plate 23a having a larger diameter than the guide wall 16c. On the upper surface of the cover plate 23a, a fitting tube 23b is provided to be removably fitted into the guide wall 16c.

  The procedure for mixing two liquids using the two-liquid mixing container 1 according to the present embodiment is as follows. First, the user removes the opening / closing lid member 23 from the guide wall 16c, puts the guide wall 16c on the mouth 4a of the second container body 4, and attaches the pressing portion 8 to the mouth 4a as shown in FIG. Place on top. In this state, when the user pushes down the first container body 2, the operating part 11 advances with respect to the fixing part 7, the volume of the pump chamber 12 decreases, and the internal pressure of the pump chamber 12 increases. At this time, the opening / closing portion 27 is urged in the forward direction with respect to the hollow rod portion 26 by the elastic body 29 via the inclined surface 28. Therefore, even if the internal pressure of the pump chamber 12 rises with the depression of the first container main body 2, the opening / closing section 27 does not immediately retreat with respect to the hollow bar-shaped section 26, and the pump chamber 12 and the through hole 24 Can be maintained, and the pressure accumulation in the pump chamber 12 can be enabled.

  In the present embodiment, since the air chamber 31 is provided in the pump chamber 12, the operating section 11 can be moved forward while compressing air, which is a compressible fluid, with the accumulation of pressure. Therefore, the operation force required for pushing down the first container body 2 can be reduced, and the usability can be improved.

  When the piston 9 reaches the upper end of the cylinder 6, the forward movement of the piston 9 is stopped by the step 17f formed between the upper end of the cylinder 6 and the lower end of the upper cylinder 17c. Then, by further advancement of the operating portion 11 (the rod-shaped member 19, the pressing member 21 and the nozzle tip member 22), the piston member 20 resists the urging force of the elastic body 29 as shown in FIGS. Then, it retreats with respect to the rod-shaped member 19. That is, since the free end (upper end) of the elastic body 29 is elastically displaced radially outward by the inclined surface 28, the downward movement of the inclined surface 28, that is, the downward movement of the piston member 20 is allowed. As a result, the opening / closing part 27 retreats with respect to the hollow rod part 26, and the pump chamber 12 and the through-hole 24 communicate.

  Thereby, the first content liquid C1 accumulated in the pump chamber 12 is ejected from the ejection port 10 from the pump chamber 12 through the through-hole 24, the inner space of the rod-shaped member 19, and the inner space of the nozzle tip member 22. I do. Therefore, the first content liquid C1 vigorously rushes into the second content liquid C2 stored in the storage space S2 of the second container body 4, and is thereby mixed with the second content liquid C2. Therefore, according to the two-liquid mixing container 1 according to the present embodiment, it is possible to reduce the necessity of shaking and mixing after introducing the first content liquid C1 into the second container main body 4. Further, by pressing down the first container body 2 with a full stroke, a fixed amount of the first content liquid C1 corresponding to the full stroke can be introduced into the second container body 4. Therefore, according to the two-liquid mixing container 1 according to the present embodiment, quantitative mixing can be easily performed.

  When the pressing down of the first container body 2 is released, the operating portion 11 retreats by the urging force of the coil spring 14, and first, the opening / closing portion 27 advances with respect to the hollow rod portion 26, and the pump chamber 12 and the through-hole 24 Block communication. Then, by further retreating of the operating portion 11, the volume of the pump chamber 12 increases, and the internal pressure of the pump chamber 12 decreases, and the internal pressure of the storage space S1 becomes negative. Due to the negative pressure, as shown in FIG. 6, the valve element 18a separates from the annular projection 17e, and the first content liquid C1 flows into the pump chamber 12 from the storage space S1. At this time, the air compressed inside the air chamber 31 expands inside the air chamber 31 with the negative pressure.

  Then, the two-liquid mixing container 1 returns to the state as shown in FIG. When a further amount of the first content liquid C1 is desired to be mixed, the user may repeat the above-described operation of pressing down the first container body 2 from this state.

  As a first modified example of the present embodiment, as shown in FIG. 7, a communication port 32 that covers an opening (a lower end opening) formed by the lower end of the surrounding wall 30 and that allows the air chamber 31 and the pump chamber 12 to communicate with each other is provided. A lid 33 with a communication port may be provided. In the present modified example, the lid 33 with the communication port is formed of a covering wall 33 a covering the lower end opening of the surrounding wall 30, And a fitting cylindrical wall 33b. The covering wall 33a is connected to a lower end of the surrounding wall 30 via a hinge. However, the communication port lid 33 may be provided separately from the valve member 18. Further, in the present modification, the communication port 32 is constituted by only one hole formed at the center of the covering wall 33a. In addition, the hole is set to a size that makes it difficult for air to pass through. In addition, the number, arrangement, shape, and the like of the holes constituting the communication port 32 can be appropriately changed according to the viscosity of the first content liquid C1 and the like.

  According to such a configuration, even when the first container 1a falls down, the air can be easily held inside the air chamber 31, so that the stable operation of the first container 1a can be ensured. .

  As a second modification of the present embodiment, as shown in FIG. 8, a sliding member 35 that can slide on the inner peripheral surface of the surrounding wall 30 with the air chamber 31 sealed may be provided. . In the present modified example, the sliding member 35 is a substantially cylindrical vertical wall having an annular sliding portion 35a slidable on the inner peripheral surface of the cylindrical peripheral wall of the surrounding wall 30 at the upper end on the outer peripheral surface. 35b, and a horizontal disk-shaped horizontal wall 35c for closing the lower edge of the vertical wall 35b. At the lower end of the peripheral wall of the surrounding wall 30, an annular frame 36 is attached, which abuts on the lower surface of the sliding portion 35 a to restrict its lowering. The frame body 36 has a horizontal annular lower wall 36a having an outer diameter equal to the outer diameter of the peripheral wall of the surrounding wall 30 and an inner diameter smaller than the inner diameter of the peripheral wall of the surrounding wall 30, and an inner peripheral edge of the lower wall 36a. And a cylindrical upright wall 36b that can be fitted to the inner peripheral surface of the peripheral wall of the surrounding wall 30. The upper end of the upright wall 36b can contact the lower end of the vertical wall 35b of the sliding member 35. The frame 36 is connected to a lower end of the surrounding wall 30 via a hinge 37. However, the frame 36 may be provided separately from the valve member 18.

  According to such a configuration, even when the first container 1a falls down, the air can be reliably held in the air chamber 31, so that stable operation of the first container 1a can be ensured. .

  The above-described embodiment is merely an example of the embodiment of the present invention, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

  For example, in the above-described embodiment, the opening / closing lid 15 is configured separately from the mounting member 16, but may be configured to be connected to the mounting member 16 via a hinge. Further, a configuration in which the opening / closing lid 15 is not provided may be adopted.

DESCRIPTION OF SYMBOLS 1 Two-liquid mixing container 1a 1st container 1b 2nd container 2 1st container main body 2a mouth 2b trunk 2c bottom 3 Accumulation pump 4 2nd container main body 4a mouth 4b trunk 4c bottom 5 suction port 6 cylinder 7 fixed part 8 Pressing part 9 Piston 10 Spout 11 Working part 12 Pump chamber 13 Backflow prevention part 14 Coil spring 15 Opening / closing lid 16 Mounting member 16a Mounting cylinder 16b Horizontal annular wall 16c Guide wall 16d Sealing cylinder 16e Outer cylinder wall 16f Inner cylinder wall 16g Inward flange 16h Guide cylinder 17 Cylindrical member 17a Flange 17b Locking cylinder 17c Upper cylinder 17d Top wall 17e Annular convex part 17f Stepped part 18 Valve member 18a Valve element 18b Fitting wall 18c Connecting wall 19 Rod member 19a Closing wall 19b Annular convex portion 20 Piston member 20a Connecting annular wall 20b Pressed wall 20c Sliding cylinder 21 Push Lever member 21a Fitting cylinder 21b Vertical rib 21c Guided cylinder 22 Nozzle tip member 23 Opening / closing lid member 23a Cover plate 23b Fitting cylinder 24 Through hole 25 Peripheral wall 26 Hollow rod-shaped part 27 Opening / closing part 28 Inclined surface 29 Elastic body 30 Surrounding wall 31 Air Chamber 32 Communication port 33 Cover with communication port 33a Covering wall 33b Fitting cylinder wall 34 Hinge 35 Sliding member 35a Sliding portion 35b Vertical wall 35c Side wall 36 Frame 36a Lower wall 36b Standing wall 37 Hinge C1 First liquid C2 Second liquid Contents liquid S1, S2 Storage space L1 Inner layer body L2 Outer layer body R Flow path

Claims (9)

A first container including a first container body having a cylindrical mouth portion connected to a storage space for storing the first content liquid, and a pressure accumulation pump;
A second container provided with a second container body having a cylindrical mouth portion connected to a storage space for storing the second content liquid,
The first container is used in an inverted posture to mix the first content liquid with the second content liquid contained in the second container,
The accumulator pump,
A fixing portion fixed to the mouth portion of the first container body and having a suction port for the first content liquid and a cylinder;
A cylinder having a pressing portion pressed against the mouth of the second container body, a piston slidable on an inner peripheral surface of the cylinder, and an ejection port for the first content liquid; An actuating part that can advance and retreat in the axial direction of
A pump chamber partitioned by the fixed portion and the operating portion into a flow path from the suction port to the jet port, and having a volume reduced by advancing the operating portion and increasing by a retreat of the operating portion. When,
A backflow prevention unit located upstream of the pump chamber,
The actuation unit is
A hollow rod-shaped portion having a peripheral wall having a through hole and forming a part of the flow path by the inner space of the through hole and the peripheral wall,
While being integrally connected to the piston, it is possible to cut off the communication between the pump chamber and the through port by advancing in the axial direction with respect to the hollow rod-shaped portion, while in the axial direction with respect to the hollow rod-shaped portion. An opening / closing unit that allows the pump chamber and the through hole to communicate with each other by retreating,
An elastic body for urging the opening / closing part in the forward direction with respect to the hollow rod-shaped part,
Two-part mixing container. The actuation unit is
A rod-shaped member having the hollow rod-shaped portion,
A piston member having the piston and the opening and closing unit,
A pressing member attached to the rod-shaped member and having the pressing portion.
The two-component mixing container according to claim 1. The piston member has an inclined surface that is inclined radially inward toward the rear,
The elastic body includes a cantilevered elastic piece provided on the pressing member and pressing the inclined surface radially inward,
The two-liquid mixing container according to claim 2.   The two-liquid mixing container according to any one of claims 1 to 3, wherein an air chamber that accommodates air so as to be able to expand and contract according to the rise and fall of the internal pressure of the pump chamber is provided inside the pump chamber. . The fixing unit includes a valve member having a valve body that constitutes the backflow prevention unit,
The two-liquid mixing container according to claim 4, wherein the valve member includes a top-end cylindrical surrounding wall that partitions the air chamber inside.   The two-liquid mixing container according to claim 5, further comprising: a lid with a communication port that covers an opening formed by a lower end of the surrounding wall and has a communication port that allows the air chamber and the pump chamber to communicate with each other.   The two-liquid mixing container according to claim 5, further comprising a sliding member slidable with respect to an inner peripheral surface of the surrounding wall while the air chamber is sealed.   The two-package according to any one of claims 1 to 7, wherein the first container body is a sealed container that can be ejected from the ejection port of the pressure accumulation pump without replacing the first content liquid with air. Mixing container. A container main body having a cylindrical mouth portion connected to the storage space for storing the content liquid, and a pressure accumulation pump,
The content liquid is used in an inverted posture to be mixed with another content liquid stored in a storage space connected to a cylindrical mouth portion of a container body of another container,
The accumulator pump,
A fixed portion fixed to the mouth of the container body and having a suction port and a cylinder for the content liquid,
The container has a pressing portion pressed against the mouth portion of the other container body, a piston slidable on the inner peripheral surface of the cylinder, and a discharge port for the content liquid, and the shaft of the cylinder with respect to the fixed portion. An operating part that can move back and forth in the direction,
A pump chamber partitioned by the fixed portion and the operating portion into a flow path from the suction port to the jet port, and having a volume reduced by advancing the operating portion and increasing by a retreat of the operating portion. When,
A backflow prevention unit located upstream of the pump chamber,
The actuation unit is
A hollow rod-shaped portion having a peripheral wall having a through hole and forming a part of the flow path by the inner space of the through hole and the peripheral wall,
While being integrally connected to the piston, it is possible to cut off the communication between the pump chamber and the through port by advancing in the axial direction with respect to the hollow rod-shaped portion, while in the axial direction with respect to the hollow rod-shaped portion. An opening / closing unit that allows the pump chamber and the through hole to communicate with each other by retreating,
An elastic body for urging the opening / closing part in the forward direction with respect to the hollow rod-shaped part,
Spout container for two-component mixing.

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